I've read around that one of the reasons for bitcoin's slow adoption is the psychological factor of having "just a few bitcoins."
That's silly. That's like saying there is a psychological factor of having "just a few thousand dollars". Anyone who feels that way, isn't capable of logic and reason. As such, they wouldn't contribute much to the economy anyhow. Eventually, when all they can have is "just a few micro-bitcoin, they may finally see reality and come around.
That is ridiculous. There is definitely a psychological factor involved in how people perceive currency magnitudes, that has noting to do with reason. Should people who are afraid of peanut-butter be denied excess to the economy, because there believes are irrational?
The peanut butter economy? Absolutely! I don't think that anybody that is afraid of peanut butter should be buying, selling, storing, eating, or otherwise using peanut butter.
Of course, if they are only concerned about the words "peanut butter" (bitcoin), and they if they are not concerned at all about crushed and creamated peanuts stored in a jar (bitcoin based units of value), then they can create a new label "creamed peanuts" (millies) on their own jars and happily participate in the peanut butter economy without exposing themselves to their irrational concerns.
I see no reason why the entire peanut butter economy should have to adjust the definitions of words and start calling it "orange juice" instead of "peanut butter" just to assuage the irrational beliefs of a few silly people.